Apply suggestions from code review

Author: mr-c

cwltool/checker.py

@@ -566,7 +566,7 @@ def resreq_minmax_checker(requirement: CWLObjectType) -> None:
     :raises ValidationException: If the minResource is greater than the maxResource.
     """
     for a in ("cores", "ram", "tmpdir", "outdir"):
-        mn: int | float | None = cast(Union[int, float], requirement.get(a + "Min"))
-        mx: int | float | None = cast(Union[int, float], requirement.get(a + "Max"))
+        mn = cast(Union[int, float, None], requirement.get(a + "Min"))
+        mx = cast(Union[int, float, None], requirement.get(a + "Max"))
         if mn is not None and mx is not None and mx < mn:
             raise ValidationException(f"{a}Min cannot be greater than {a}Max.")

tests/test_examples.py

@@ -1850,6 +1850,7 @@ def test_invalid_resource_requirements(file: str) -> None:
     """Ensure an error with an invalid resource requirement."""
     exit_code, stdout, stderr = get_main_output(
         [
+            "--disable-validate",
             get_data(file),
         ]
     )